Fusion protein amino acids 568-674 of human JMJD2A (also known as JmjC domain-containing histone demethylation protein 3A, Jumonji domain-containing protein 2A, JHDM3A and KIAA0677, accession number O75164) Mouse: 94% identity (100/106 amino acids identical) >50% identity with JMJD2C